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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
09/02/2022 |
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Data da última atualização: |
12/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACHÚ, J. K. S.; MACHEDO, F. C. O.; MALAQUIAS, J. P.; RAMALHO, F. de S.; OLIVEIRA, R. F.; FRANCO, F. P.; GODOY, W. A. C. |
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Afiliação: |
JÉSSICA K. S. PACHÚ, ESALQ; FRANCYNES C. O. MACEDO, ESALQ; JOSÉ P. MALAQUIAS, UNESP; FRANCISCO DE SOUSA RAMALHO, CNPA; RICARDO F. OLIVEIRA, ESALQ; FLÁVIA PEREIRA FRANCO, ESALQ; WESLEY A. C. GODOY, ESALQ. |
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Título: |
Electrical signalling on Bt and non-Bt cotton plants under stress by Aphis gossypii. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
PLoS ONE, v. 16, n. 4, e0249699, p. 1-15, 2021. |
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Páginas: |
15 p. |
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ISSN: |
1932-6203 |
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DOI: |
10.1371/journal.pone.0249699 |
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Idioma: |
Inglês |
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Conteúdo: |
Plants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plants under aphid stress. MenosPlants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plan... Mostrar Tudo |
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Thesagro: |
Algodão; Aphis Gossypii; Bacillus Thuringiensis; Defesa Vegetal; Organismo Transgênico. |
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Thesaurus Nal: |
Animal stress; Cotton; Defense mechanisms; Transgenic plants. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/231131/1/ELECTRICAL-SIGNALLING-BT-NON-BT-COTTON.pdf
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Marc: |
LEADER 02482naa a2200337 a 4500
001 2139863
005 2022-02-12
008 2021 bl uuuu u00u1 u #d
022 $a1932-6203
024 7 $a10.1371/journal.pone.0249699$2DOI
100 1 $aPACHÚ, J. K. S.
245 $aElectrical signalling on Bt and non-Bt cotton plants under stress by Aphis gossypii.$h[electronic resource]
260 $c2021
300 $a15 p.
520 $aPlants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plants under aphid stress.
650 $aAnimal stress
650 $aCotton
650 $aDefense mechanisms
650 $aTransgenic plants
650 $aAlgodão
650 $aAphis Gossypii
650 $aBacillus Thuringiensis
650 $aDefesa Vegetal
650 $aOrganismo Transgênico
700 1 $aMACHEDO, F. C. O.
700 1 $aMALAQUIAS, J. P.
700 1 $aRAMALHO, F. de S.
700 1 $aOLIVEIRA, R. F.
700 1 $aFRANCO, F. P.
700 1 $aGODOY, W. A. C.
773 $tPLoS ONE$gv. 16, n. 4, e0249699, p. 1-15, 2021.
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Registro original: |
Embrapa Algodão (CNPA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
18/08/1999 |
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Data da última atualização: |
09/09/2021 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
ALENCAR, M. M. de. |
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Afiliação: |
MAURICIO MELLO DE ALENCAR, CPPSE. |
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Título: |
Formação de novas raças de bovinos de corte. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: BARBOSA, P. F.; BARBOSA, R. T.; ESTEVES, S. N. (Ed.). Intensificação da bovinocultura de corte: estratégias de melhoramento genético. São Carlos: EMBRAPA-CPPSE, 1997. |
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Páginas: |
p.30-40. |
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Idioma: |
Português |
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Conteúdo: |
Utilização do cruzamento entre raças; Novas raças; Desenvolvimento de novas raças; Raças sinteticas no Brasil. |
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Palavras-Chave: |
Novas raças. |
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Thesagro: |
Gado de Corte. |
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Thesaurus NAL: |
beef cattle. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118636/1/digitalizar0015.pdf
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Marc: |
LEADER 00701naa a2200169 a 4500
001 1044555
005 2021-09-09
008 1997 bl uuuu u00u1 u #d
100 1 $aALENCAR, M. M. de
245 $aFormação de novas raças de bovinos de corte.$h[electronic resource]
260 $c1997
300 $ap.30-40.
520 $aUtilização do cruzamento entre raças; Novas raças; Desenvolvimento de novas raças; Raças sinteticas no Brasil.
650 $abeef cattle
650 $aGado de Corte
653 $aNovas raças
773 $tIn: BARBOSA, P. F.; BARBOSA, R. T.; ESTEVES, S. N. (Ed.). Intensificação da bovinocultura de corte: estratégias de melhoramento genético. São Carlos: EMBRAPA-CPPSE, 1997.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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